Thanks, a bit more detail is required. Actually I am developing an application in HTMLDB and this application needs to be integrated with SiteMinder. I need various information through SiteMinder variables which will be avilable to me through HTTP Headers, for example SM_USER, SM_AUTHORIZED etc.

Can I do some thing like owa_util.get_cgi_env("SM_USER"), like this I want to access the siteminder variables which will be in Header attributes.. Is this possible... Please help.

You can also find more information on using mod_plsql and cgi environment variables here:
http://manuals.it.swin.edu.au/oracle10.1/server.101/b12303/concept.htm#1006127
http://manuals.it.swin.edu.au/oracle10.1/server.101/b12255/confmods.htm#1014712

thanks for ur valuable help!!! I am not using any application server, the environment is HTMLDB, modpl/sql, and Oracle HTTP server . Just let me know how should I add the SiteMinder variables in DAD using HTMLDB. I am new to it.